<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册表单 -->
      <el-form
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
        :model="registerData"
        :rules="registerDataRules"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="userAccount">
          <el-input
            :prefix-icon="User"
            placeholder="请输入用户名"
            v-model="registerData.userAccount"
          ></el-input>
        </el-form-item>
        <el-form-item prop="userPassword">
          <el-input
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
            v-model="registerData.userPassword"
          ></el-input>
        </el-form-item>
        <el-form-item prop="checkPassword">
          <el-input
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
            v-model="registerData.checkPassword"
          ></el-input>
        </el-form-item>
        <el-form-item prop="phone">
          <el-input
            :prefix-icon="Phone"
            placeholder="请输入手机号"
            v-model="registerData.phone"
          ></el-input>
        </el-form-item>
        <!-- 注册按钮 -->
        <el-form-item>
          <el-button
            class="button"
            type="primary"
            auto-insert-space
            @click="register"
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link
            type="info"
            :underline="false"
            @click="
              isRegister = false
              clearRegisterData()
            "
          >
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录表单 -->

      <el-form
        ref="form"
        size="large"
        autocomplete="off"
        v-else
        :model="registerData"
        :rules="registerDataRules"
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item>
          <el-input
            :prefix-icon="User"
            placeholder="请输入用户名"
            v-model="registerData.userAccount"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-input
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
            v-model="registerData.userPassword"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button
            class="button"
            type="primary"
            auto-insert-space
            @click="login"
          >
            登录
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link
            type="info"
            :underline="false"
            @click="
              isRegister = true
              clearRegisterData()
            "
          >
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<script setup>
import { ElMessage } from 'element-plus'
import { User, Lock } from '@element-plus/icons-vue'
import { useRouter } from 'vue-router'
import { ref } from 'vue'
import { registerService, loginService } from '../api/user.ts'
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)
//用于注册的数据模型
const registerData = ref({
  userAccount: '',
  userPassword: '',
  checkPassword: '',
  phone: '',
})
//自定义确认密码的校验函数
const rePasswordValid = (rule, value, callback) => {
  if (value == null || value === '') {
    return callback(new Error('请再次确认密码'))
  }
  if (registerData.value.userPassword !== value) {
    return callback(new Error('两次输入密码不一致'))
  }
}
//用于注册的表单校验模型
const registerDataRules = ref({
  userAccount: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 16, message: '用户名的长度必须为5~16位', trigger: 'blur' },
  ],
  userPassword: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 5, max: 16, message: '密码长度必须为5~16位', trigger: 'blur' },
  ],
  checkPassword: [{ validator: rePasswordValid, trigger: 'blur' }],
  phone: [
    { required: true, message: '请输入手机号', trigger: 'blur' },
    { min: 11, max: 11, message: '手机号必须为11位', trigger: 'blur' },
  ],
})

const register = async () => {
  //console.log('注册...');
  //registerData是响应式对象，获取值必须.value
  let result = await registerService(registerData.value)
  if (result.code == 0) {
    ElMessage.success('注册成功!')
    isRegister.value = false
  } else {
    ElMessage.error('注册失败，' + result.message)
  }
}

//清空数据模型的数据
const clearRegisterData = () => {
  registerData.value = {
    username: '',
    password: '',
    rePassword: '',
  }
}

//导入token状态
import { useTokenStore } from '../store/token.ts'

//调用useTokenStore得到状态
const tokenStore = useTokenStore()

const router = useRouter()
//用于登录的事件函数
const login = async () => {
  let result = await loginService(registerData.value)
  if (result.code == 0) {
    ElMessage.success('登录成功!')
    //跳转到主页
    router.push('/')
  } else {
    ElMessage.error('登录失败，' + result.message)
  }
}
</script>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background:
      url('../assets/logo2.png') no-repeat 60% center / 240px auto,
      url('../assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
